4 FAQs about Outdoor power supply voltage adjustment

How do you adjust the output voltage of a power supply?

The output voltage of a power supply is usually a fixed voltage, but sometimes it may be necessary to adjust that output voltage. For example, you may be able to reduce the power dissipation in a low-voltage high-current processor – while still keeping performance high – by adjusting the voltage fed to the core.

Does an AC-DC power supply have an output voltage adjustment?

AC-DC power supplies and DC-DC converters often feature an output voltage adjustment, the range of which is stated in the datasheet. An AC-DC power supply may have a potentiometer accessible to set the output voltage from the original factory set point. (See Figure 1).

What is an adjustable output power supply (AVS)?

Using AVS allows the processor to optimize the core voltage, thus improving performance and reducing power dissipation. This is just one example of how to create an adjustable-output power supply. For more information, see my latest Power Tips post on EETimes.

How does an AC-DC power supply work?

An AC-DC power supply may have a potentiometer accessible to set the output voltage from the original factory set point. (See Figure 1). Adjusting the output voltage may be needed to compensate for voltage drops in the load cables, or to optimize the load's performance or efficiency.

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